Extinction
... Eohippus (an ancient horse-like animal) was the ancestor of several
extant species including the horse , the zebra and the donkey . The Eohippus ... of conservation programs.
Species which are not extinct are termed
extant .
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1 Definition
...
Endosymbiont
... gut, mouth or nephridia).
Bacterial endosymbionts in other marine invertebrates
Extracellular endosymbionts are also represented in all 5
extant classes of Echinodermata ( Crinoidea , Ophiuroidea , Asteroidea , Echinoidea , and Holothuroidea ). Little is known of the nature of the ...
Endosymbiont
... gut, mouth or nephridia).
Bacterial endosymbionts in other marine invertebrates
Extracellular endosymbionts are also represented in all 5
extant classes of Echinodermata ( Crinoidea , Ophiuroidea , Asteroidea , Echinoidea , and Holothuroidea ). Little is known of the nature of the ...
Evolution
... principal mechanism that causes evolution. In common parlance the word "evolution" is often used as a shorthand for both the modern theory that all
extant species share a common ancestor as well as the mechanisms through which natural selection acts to change populations over time.
This theory was ...
Human
... , Human physical appearance , Human height
Biologically, humans are defined as hominids of the species Homo sapiens , of which the only
extant subspecies is Homo sapiens sapiens . They are usually considered the only surviving species in the genus Homo , although some argue that the ...
Immunology
... degree of accuracy). Such testing is also used to distinguish compatible blood types .
Evolutionary immunology
Study of the immune system in
extant and extinct species is capable of giving us a key understanding of the evolution of species and the immune system.
A development of complexity ...
Plant
...
Phytophilia (love of plants)
Vegetation Structure
External links
Tree of Life
Chaw, S.-M. et al. Molecular Phylogeny of
extant Gymnosperms and Seed Plant Evolution: Analysis of Nuclear 18s rRNA Sequences (pdf file) Molec. Biol. Evol . 14 (1): 56-68. 1997.
Botanical ...
Plant
...
Phytophilia (love of plants)
Vegetation Structure
External links
Tree of Life
Chaw, S.-M. et al. Molecular Phylogeny of
extant Gymnosperms and Seed Plant Evolution: Analysis of Nuclear 18s rRNA Sequences (pdf file) Molec. Biol. Evol . 14 (1): 56-68. 1997.
Botanical ...
Virus
... gives any other form, including such "reconstructed" Latin plural forms as viri (which actually means men ). (No plural form appears in any
extant Latin manuscript). (See plural of virus ).
Viruses: non-living or alive?
A virus makes use of existing enzymes and other molecules of a ...